title: Squamous cell carcinoma of the lip in long-standing oral lichen planus: case report, surgical approach.
mesh_terms: D002294:Carcinoma, Squamous Cell / Q000150:complications* / Q000601:surgery*; D006801:Humans; D017676:Lichen Planus, Oral / Q000150:complications*; D008048:Lip Neoplasms / Q000150:complications* / Q000601:surgery*; D008297:Male; D008875:Middle Aged; D019651:Plastic Surgery Procedures; D013524:Surgical Flaps